Pseudoscorpion
Scientific Name: Not a single species can be identified from the image, but the order is Pseudoscorpiones. Examples of genera include Chelifer, Chernes.
Order & Family: Order: Pseudoscorpiones, Family: Varies widely, common families include Cheliferidae, Chernetidae
Size: Typically measures 2-8 mm (0.08-0.31 inches) in body length, though some can be as small as 1 mm or up to 12 mm.
Natural Habitat
Pseudoscorpions are found in a wide variety of microhabitats, including leaf litter, under bark of trees, in moss, lichen, in soil, in caves, and even in human dwellings (common in bathrooms, basements, and dusty corners as they are attracted to moisture and prey like booklice and mites).
Diet & Feeding
Pseudoscorpions are carnivorous, preying on small arthropods such as mites, springtails, ants, psocids, and small larvae. They inject venom through their chelicerae (mouthparts) to immobilize prey.
Behavior Patterns
Pseudoscorpions are generally secretive creatures, often found in dark, damp places. They are predacious, using their pincers (pedipalps) to capture and hold prey. Some species spin silk to create retreats for molting, overwintering, or protecting their eggs and young. Mating rituals often involve complex dances and transfer of a spermatophore.
Risks & Benefits
Pseudoscorpions are harmless to humans; they do not bite or sting. They are beneficial as natural predators of many common household pests, including carpet beetle larvae, clothes moth larvae, booklice, dust mites, and ants.
Identified on: 8/19/2025